Kiradech Aphibarnrat holds a one-shot lead over Laurie Canter after the second round of the European Tour's BMW PGA Championship at Wentworth.
Aphibarnrat shared the overnight lead with Christiaan Bezuidenhout, who went round in level par on Friday, but a four-under 68 moved him into top spot as the Thai sits on 12 under.
Canter, who has only seven European Tour top-10 finishes since 2010, was joint-fourth after Thursday's play but a second-round 66 placed him one stroke shy of Aphibarnrat.
Returning to the European Tour's flagship event for the first time since 2006, Adam Scott sits in third place after recovering from a double-bogey six on the third to reach 10 under.
Scott's playing partner Justin Rose, who knows victory at Wentworth will guarantee an outright spot in Padraig Harrington's Ryder Cup team, joined Jamie Donaldson and Billy Horschel in a share of fourth after carding 68, which put him on nine under overall.
Ryder Cup hopeful Shane Lowry finds himself embroiled in numerous qualification scenarios with Bernd Wiesberger, who closed on six under, and is now four shots back from the lead after producing a six-under 66.
The Irishman is part of a seven-man group in a tie for seventh and the 2019 Open Champion feels he is thriving under the pressure of securing a spot at Whistling Straits on September 24.
"Coming here with a little bit of pressure on me needing to perform and play well and I've done that the first two days," he said. "I'm pretty happy to be honest.
"Obviously I want to make the [Ryder Cup] team automatically. I think I've played some really good golf over the last few months to put my hat in for a pick on Sunday evening if I do need one.
"I'm here to win the golf tournament."
Lee Westwood knows his qualification spot could still be in danger but made his 20th cut at the BMW PGA Championship as he finished with back-to-back birdies for his 71.
However, he shared a contrasting opinion to Lowry, questioning whether the scramble for places so close to the Ryder Cup was a sensible method for future success.
"I'm here to try and win the tournament and Sunday night, if you're in the team, then you start thinking about the Ryder Cup," Westwood said.
"This tournament is heavily loaded compared to everything else we've done, and I think it's something to maybe look at in the future."
Ian Poulter, who will hope to be one of Harrington's wildcards on Sunday, chipped in at the par-five 18th but missed the cut by one shot, while defending champion Tyrrell Hatton also will not return for the weekend despite bouncing back from a poor first-round showing to reach one under.